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  <title>Check whether the current element of the iterator is acceptable</title>
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  <div id="layout-content"><div id="filteriterator.accept" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">FilterIterator::accept</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.1.0, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">FilterIterator::accept</span> &mdash; <span class="dc-title">Check whether the current element of the iterator is acceptable</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-filteriterator.accept-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>FilterIterator::accept</strong></span>(): <span class="type">bool</span></div>

  <p class="para rdfs-comment">
   Returns whether the current element of the iterator is acceptable through this filter.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-filteriterator.accept-parameters">
  <h3 class="title">参数</h3>
  <p class="para">此函数没有参数。</p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-filteriterator.accept-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   <strong><code>true</code></strong> if the current element is acceptable, otherwise <strong><code>false</code></strong>.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-filteriterator.accept-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-3625">
    <p><strong>示例 #1 <span class="function"><strong>FilterIterator::accept()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">//&nbsp;This&nbsp;iterator&nbsp;filters&nbsp;all&nbsp;values&nbsp;with&nbsp;less&nbsp;than&nbsp;10&nbsp;characters<br /></span><span style="color: #007700">class&nbsp;</span><span style="color: #0000BB">LengthFilterIterator&nbsp;</span><span style="color: #007700">extends&nbsp;</span><span style="color: #0000BB">FilterIterator&nbsp;</span><span style="color: #007700">{<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;public&nbsp;function&nbsp;</span><span style="color: #0000BB">accept</span><span style="color: #007700">()&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;Only&nbsp;accept&nbsp;strings&nbsp;with&nbsp;a&nbsp;length&nbsp;of&nbsp;10&nbsp;and&nbsp;greater<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">return&nbsp;</span><span style="color: #0000BB">strlen</span><span style="color: #007700">(</span><span style="color: #0000BB">parent</span><span style="color: #007700">::</span><span style="color: #0000BB">current</span><span style="color: #007700">())&nbsp;&gt;=&nbsp;</span><span style="color: #0000BB">10</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />}<br /><br /></span><span style="color: #0000BB">$arrayIterator&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">ArrayIterator</span><span style="color: #007700">(array(</span><span style="color: #DD0000">'test1'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'more&nbsp;than&nbsp;10&nbsp;characters'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">$lengthFilter&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">LengthFilterIterator</span><span style="color: #007700">(</span><span style="color: #0000BB">$arrayIterator</span><span style="color: #007700">);<br /><br />foreach&nbsp;(</span><span style="color: #0000BB">$lengthFilter&nbsp;</span><span style="color: #007700">as&nbsp;</span><span style="color: #0000BB">$value</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #0000BB">$value&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
more than 10 characters
</pre></div>
    </div>
   </div>
  </p>
 </div>


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